Fuel Intake; 13.11.1 Pickup Body; Fuel Suction Hose In Tank Housing - Stihl MS 661 Manual

Installing
– Coat sealing ring of new tank
vent with STIHL press fluid,
b 16
– Push home the tank vent by hand
until it snaps into position.
– Reassemble all other parts in the
reverse sequence.
13.11

Fuel Intake

13.11.1 Pickup Body

The fine pores of the filter become
clogged with minute particles of dirt.
This restricts the passage of fuel
and results in fuel starvation.
In the event of problems with the
fuel supply system, always check
the fuel tank and the pickup body
first.
– Troubleshooting, b 3.6 or
b 3.7
Clean the fuel tank if necessary.
– Open the tank cap and drain the
tank, b 1.1
– Pour a small amount of clean
gasoline into the tank. Close the
tank and shake the saw
vigorously.
– Open the tank again and drain it,
b 1.1
– Dispose of fuel properly in
accordance with environmental
requirements, b 1.1
– Open the tank cap.
114
: Use hook 5910 893 8800 to
remove the pickup body (1) from
the fuel tank.
Do not overstretch the fuel hose.
: Pull off the pickup body (1),
check it and replace if necessary.
– Reassemble in the reverse
sequence.
13.11.2 Fuel Suction Hose in
Tank Housing
– Open the tank cap.
– Remove the carburetor, b 13.4
– Remove the pickup body,
b 13.11.1
1
: Pry fuel suction hose (1) out of
bore and pull it out of the tank.
– Check the fuel suction hose and
replace if necessary.
Installing
1
1
– Use STIHL press fluid to make
installation easier, b 16
: Insert the fuel suction hose (1) in
the bore in the fuel tank and
position it so that the flange
matches the contour (arrow) on
the tank housing, then push it
fully home.
: Use hook 5910 893 8800 to pull
the end of the fuel suction
hose (1) out of the fuel tank.
Do not overstretch the fuel suction
hose.
– Fit the pickup body, b 13.11.1
– Close the tank cap.
– Reassemble all other parts in the
reverse sequence.
MS 661, MS 661 C-M
1